Oh, thanks... I'll check those links.
I went to the Indecopi (which is the Peruvian bureau for intellectual property and the like) and they told me that, according to Peruvian laws, if I say something is mine, it is; and if someone wants to make any claim he must prove me wrong. It's a sort of automatic copyright.
For brand names, it's the same. If I can prove I've been using a brand or commercial name for at least six months, then it mine. And I can prove that.
I'll double check anyway.
